Although, it's really not. There are highly sophisticated text-to-speech programs that have absolutely no problem reading those advertisements and going to the link on demand. If you pay attention to the news, Target just got sued by a blind persons' rights advocacy group for their website using pictures for all their descriptions and links instead of readable text that these programs can use. So it's really not that funny.

"Although, it's really not. There are highly sophisticated text-to-speech
programs that have absolutely no problem reading those advertisements and
going to the link on demand. If you pay attention to the news, Target just
got sued by a blind persons' rights advocacy group for their website using
pictures for all their descriptions and links instead of readable text that
these programs can use. So it's really not that funny." - pwned